refactor: wip to nestjs

packages/server-nest/src/modules/BillPayments/commands/BillPaymentBillSync.service.ts

@@ -0,0 +1,44 @@
+import { Injectable } from '@nestjs/common';
+import { Knex } from 'knex';
+import { Bill } from '../../Bills/models/Bill';
+import { IBillPaymentEntryDTO } from '../types/BillPayments.types';
+
+@Injectable()
+export class BillPaymentBillSync {
+  constructor(private readonly bill: typeof Bill) {}
+
+  /**
+   * Saves bills payment amount changes different.
+   * @param {number} tenantId -
+   * @param {IBillPaymentEntryDTO[]} paymentMadeEntries -
+   * @param {IBillPaymentEntryDTO[]} oldPaymentMadeEntries -
+   */
+  public async saveChangeBillsPaymentAmount(
+    paymentMadeEntries: IBillPaymentEntryDTO[],
+    oldPaymentMadeEntries?: IBillPaymentEntryDTO[],
+    trx?: Knex.Transaction,
+  ): Promise<void> {
+    const opers: Promise<void>[] = [];
+
+    const diffEntries = entriesAmountDiff(
+      paymentMadeEntries,
+      oldPaymentMadeEntries,
+      'paymentAmount',
+      'billId',
+    );
+    diffEntries.forEach(
+      (diffEntry: { paymentAmount: number; billId: number }) => {
+        if (diffEntry.paymentAmount === 0) {
+          return;
+        }
+        const oper = this.bill.changePaymentAmount(
+          diffEntry.billId,
+          diffEntry.paymentAmount,
+          trx,
+        );
+        opers.push(oper);
+      },
+    );
+    await Promise.all(opers);
+  }
+}